WO2022189382A1 - Alterungsbeständige feuchtigkeitshärtende zusammensetzungen - Google Patents
Alterungsbeständige feuchtigkeitshärtende zusammensetzungen Download PDFInfo
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- WO2022189382A1 WO2022189382A1 PCT/EP2022/055798 EP2022055798W WO2022189382A1 WO 2022189382 A1 WO2022189382 A1 WO 2022189382A1 EP 2022055798 W EP2022055798 W EP 2022055798W WO 2022189382 A1 WO2022189382 A1 WO 2022189382A1
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- Prior art keywords
- silane
- group
- groups
- compounds
- functional
- Prior art date
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 229940119545 isobornyl methacrylate Drugs 0.000 description 1
- QRFPECUQGPJPMV-UHFFFAOYSA-N isocyanatomethyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CN=C=O QRFPECUQGPJPMV-UHFFFAOYSA-N 0.000 description 1
- HENJUOQEQGBPSV-UHFFFAOYSA-N isocyanatomethyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)CN=C=O HENJUOQEQGBPSV-UHFFFAOYSA-N 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- WQEWAQFTKKOSJK-UHFFFAOYSA-N methoxymethylsilane Chemical compound COC[SiH3] WQEWAQFTKKOSJK-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
- LIBWSLLLJZULCP-UHFFFAOYSA-N n-(3-triethoxysilylpropyl)aniline Chemical compound CCO[Si](OCC)(OCC)CCCNC1=CC=CC=C1 LIBWSLLLJZULCP-UHFFFAOYSA-N 0.000 description 1
- PSIDVLNBMQXBFV-UHFFFAOYSA-N n-ethyl-3-triethoxysilylpropan-1-amine Chemical compound CCNCCC[Si](OCC)(OCC)OCC PSIDVLNBMQXBFV-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- UDKSLGIUCGAZTK-UHFFFAOYSA-N phenyl pentadecane-1-sulfonate Chemical compound CCCCCCCCCCCCCCCS(=O)(=O)OC1=CC=CC=C1 UDKSLGIUCGAZTK-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229920013730 reactive polymer Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012215 seam sealant Substances 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 239000004432 silane-modified polyurethane Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- SVPYVBAHWDJDAX-UHFFFAOYSA-N silylmethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC[SiH3] SVPYVBAHWDJDAX-UHFFFAOYSA-N 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical class S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical class [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- BOTMPGMIDPRZGP-UHFFFAOYSA-N triethoxy(isocyanatomethyl)silane Chemical compound CCO[Si](OCC)(OCC)CN=C=O BOTMPGMIDPRZGP-UHFFFAOYSA-N 0.000 description 1
- ROWWCTUMLAVVQB-UHFFFAOYSA-N triethoxysilylmethanamine Chemical compound CCO[Si](CN)(OCC)OCC ROWWCTUMLAVVQB-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- ARKBFSWVHXKMSD-UHFFFAOYSA-N trimethoxysilylmethanamine Chemical compound CO[Si](CN)(OC)OC ARKBFSWVHXKMSD-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- ASLWPAWFJZFCKF-UHFFFAOYSA-N tris(1,3-dichloropropan-2-yl) phosphate Chemical compound ClCC(CCl)OP(=O)(OC(CCl)CCl)OC(CCl)CCl ASLWPAWFJZFCKF-UHFFFAOYSA-N 0.000 description 1
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 description 1
- XKCQNWLQCXDVOP-UHFFFAOYSA-N tris(2-chloropropan-2-yl) phosphate Chemical compound CC(C)(Cl)OP(=O)(OC(C)(C)Cl)OC(C)(C)Cl XKCQNWLQCXDVOP-UHFFFAOYSA-N 0.000 description 1
- LIPMRGQQBZJCTM-UHFFFAOYSA-N tris(2-propan-2-ylphenyl) phosphate Chemical class CC(C)C1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C(C)C)OC1=CC=CC=C1C(C)C LIPMRGQQBZJCTM-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C08L101/10—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing hydrolysable silane groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
- C09J201/02—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C09J201/10—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing hydrolysable silane groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3437—Six-membered rings condensed with carbocyclic rings
Definitions
- silane-terminated prepolymers there are several possibilities for synthesizing silane-functional prepolymers, in particular silane-terminated prepolymers: Firstly, an alkoxysilane can be bonded to an isocyanate-containing polyurethane prepolymer via an isocyanate-reactive group as a functional group, such as hydroxyl, amino or mercapto. Alternatively, an isocyanate-functional alkoxysilane can be attached to a polymer bearing isocyanate-reactive groups such as hydroxy, amino, or mercapto. Another possibility for the production of silane-terminated prepolymers is the hydrosilylation of double bonds.
- alkoxysilane-containing polymers Another way of producing alkoxysilane-containing polymers is based on the conversion of unsaturated compounds.
- a polymeric compound with unsaturated groups can be reacted with a hydrosilane as part of a hydrosilylation of the double bond.
- Examples 6 and 7 disclose the radical polymerization of unsaturated monomeric compounds without an alkoxysilane radical (methacrylate compounds and maleic anhydride) in the presence of proportions of methacrylate compounds containing alkoxysilane.
- US 5,886,125 describes the copolymerization of hydroxypropyl methacrylate, an unsaturated silane-free monomer, and vinyltrimethoxysilane.
- WO 00/55229 also gives examples of alkoxysilane-containing polymers from unsaturated monomers.
- Silane-functional prepolymers in particular silane-terminated prepolymers (STP), form the basis for the production of elastic sealants or adhesives, in particular parquet adhesives.
- STP silane-terminated prepolymers
- the mechanical and chemical properties and curing speeds can be adjusted in a targeted manner by skilfully selecting other additives such as binders, fillers, plasticizers and other additives.
- Elastic adhesives have established themselves in industry, in repair shops, workshops, craftsmen and do-it-yourselfers, e.g. in vehicle construction, in the construction industry or in ship and aircraft construction.
- this object is achieved by a composition based on silane-functional prepolymers, in particular silane-terminated prepolymers, containing amine aging inhibitors.
- component B at least one amino-functional compound that acts as an anti-aging agent, with compounds of the oxalanilide type or compounds having 2, 2, 6, 6 tetramethylpiperidinyl groups being excluded from component B,
- anti-aging agents are chemical substances that are added to other substances or mixtures of substances in order to protect the latter from undesirable aging processes or to delay aging. "Aging” is a change in the physical and chemical properties of a substance after prolonged storage or use.
- alicyclic or "cycloaliphatic” shall stand for, optionally substituted, carbocyclic or heterocyclic compounds which do not belong to the aromatic compounds, such as cycloalkanes, cycloalkenes or oxa-, thia-, aza- or thiazacycloalkanes. Specific examples of these are cyclohexyl groups, cyclopentyl groups and their derivatives interrupted by one or two N or O atoms, such as pyrimidine, pyrazine, tetrahydropyran or tetrahydrofuran.
- the term "optionally substituted” or “substituted” is intended in particular for a substitution of the relevant moiety by -F, -Cl, -I, -Br, -OH, -OCH3, -OCH2CH3, -O- Isopropyl or -O-n-Propyl, -OCF3, -CF3, -S-, C1.
- low molecular weight is intended to mean compounds whose molecular weight is up to 800 g/mol.
- polyisocyanate is intended to mean aliphatic, aromatic or cycloaliphatic polyisocyanates of NCO functionality >1, preferably >2, especially di- and tri-isocyanates.
- the term "monomer” is intended to stand for a low molecular weight compound with functional groups, which is involved in the construction of polymers and has a defined molecular weight.
- polymer is intended to mean compounds in which monomers of the same or different type are repeatedly linked to one another and which may differ in terms of degree of polymerization, molecular weight distribution or chain length.
- a polymer according to the present invention is therefore a compound which has in its molecular structure at least one structural unit which is repeated at least once and which has been covalently inserted into the molecular structure during polymer synthesis through the participation of a monomer.
- isocyanate group in this application always includes both free isocyanate groups (—NCO) and blocked isocyanate groups.
- molecular weight is to be understood in each case as the number average molecular weight.
- the number average molecular weight Mn is determined by gel permeation chromatography (GPC) in tetrahydrofuran at 23°C. The procedure is according to DIN 55672-1: "Gel permeation chromatography, part 1 - tetrahydrofuran as eluent" (SECurity GPC system from PSS Polymer Service, flow rate 1.0 ml/min; columns: 2> ⁇ PSS SDV linear M, 8x300 mm, 5 pm; RID detector). Polystyrene samples of known molar mass are used for calibration. The number-average molecular weight is calculated with the aid of software. Baseline points and evaluation limits are defined in accordance with DIN 55672 Part 1 valid on the filing date of this patent application.
- composition according to the invention preferably contains at least one silane-functional pre polymer containing at least one alkoxysilane group (preferably at least two alkoxysilane groups) of the general formula (I) where
- R 1 is an alkyl group having 1 to 8 carbon atoms
- R 3 is a linear or branched, optionally cyclic, alkylene group having 1 to 18 carbon atoms, optionally containing aromatic moieties and optionally containing one or more hetero atoms; and a is 1 or 2 or 3.
- * in formula (I) stands for a free valence of the radical/structural fragment marked with it, to which the prepolymer binds.
- RI of the formula (I) is a methyl group or an ethyl group, particularly preferably a methyl group.
- R2 of the formula (I) independently represents a methyl group or an ethyl group for each radical —OR 2 of the formula (I).
- the alkoxy residues of the alkoxysilane group of the silane-functional prepolymer are selected from ethoxy and/or methoxy groups.
- R3 of the formula (I) is an alkylene group having 1 to 6 carbon atoms, in particular a methylene group (—CEE—), a 1,3-propylene group, a 1,4-butylene group or a 3,3-dimethyl-1,4-butylene group.
- a is 2 or 3, in particular 3.
- At least one alkoxysilane group binds to the termini of the silane-functional prepolymer.
- further alkoxysilane groups distributed over the polymer backbone can be bound to the prepolymer.
- Suitable silane-functionalized prepolymers are polyurethanes having at least one alkoxysilane group, polymeric polyisocyanates having at least one alkoxysilane group, polymeric polyols having at least one alkoxysilane group, polyether polyols having at least one alkoxysilane group, polyester polyols having at least one alkoxysilane group, polycarbonate polyols having at least one alkoxysilane group, polyacrylate polyols having at least one alkoxysilane group, poly methacrylate polyols with at least one alkoxysilane group and polyurethane polyols with at least one alkoxysilane group.
- the silane-functional prepolymer is a silane-functional polyurethane prepolymer that can be obtained by reacting a silane that has at least one isocyanate-reactive group with a polyurethane polymer that has isocyanate groups (the latter also hereinafter: isocyanate-functional prepolymer).
- This polyurethane prepolymer is produced by reacting a compound with isocyanate-reactive groups or mixtures of such materials and polyisocyanates, the isocyanate groups being used in excess of the isocyanate-reactive groups.
- Polymeric polyols that can be used for preparing the prepolymers have a number-average molecular weight M n of from 400 to 8000 g/mol, preferably from 400 to 6000 g/mol and particularly preferably from 400 to 3000 g/mol.
- Their hydroxyl number is 22 to 400 mg KOH/g, preferably 30 to 300 mg KOH/g and particularly preferably 40 to 250 mg KOH/g and have an OH functionality of 1.5 to 6, preferably 1.7 to 5 and more preferably from 2.0 to 5.
- Polyols for producing the prepolymers are the organic polyhydroxyl compounds known in polyurethane coating technology, such as the usual polyester polyols, polyacrylate polyols, polyurethane polyols, polycarbonate polyols, polyether polyols, polyester polyacrylate polyols and polyurethane polyacrylate polyols, polyurethane polyester polyols, polyurethane polyether polyols, polyurethane polycarbonate polyols, polyester polycarbonate polyols, phenol/formaldehyde resins, alone or in mixtures. Polyester polyols, polyether polyols, polyacrylate polyols or polycarbonate polyols are preferred, polyether polyols, polyester polyols and polycarbonate polyols being particularly preferred.
- polyether polyols are the polyaddition products of styrene oxide, ethylene oxide, propylene oxide, tetrahydrofuran, butylene oxide, epichlorohydrin, and their mixed addition and graft products, as well as those obtained by condensation of polyhydric alcohols or mixtures thereof and those obtained by alkoxylation of polyhydric alcohols, amines and amino alcohols Called polyether polyols.
- Suitable hydroxy-functional polyethers have OH functionalities of 1.5 to 6.0, preferably 1.8 to 3.0, OH numbers of 50 to 700, preferably 100 to 600 mg KOH/g solid and molecular weights M n of 106 to 4000 g/mol, preferably from 200 to 3500, such as alkoxylation products of hydroxy-functional starter molecules such as ethylene glycol, propylene glycol, butanediol, hexanediol, trimethylolpropane, glycerol, pentaerythritol, sorbitol or mixtures of these and other hydroxy-functional compounds with propylene oxide or butylene oxide.
- hydroxy-functional starter molecules such as ethylene glycol, propylene glycol, butanediol, hexanediol, trimethylolpropane, glycerol, pentaerythritol, sorbitol or mixtures of these and other hydroxy-functional compounds with prop
- Polypropylene oxide polyols, polyethylene oxide polyols and polytetramethylene oxide polyols are preferred as polyether components.
- Very suitable examples of polyester polyols are the known polycondensates of di- and optionally tri- and tetraols and di- and optionally tri- and tetra)carboxylic acids or hydroxycarboxylic acids or lactones.
- the free polycarboxylic acids the corresponding polycarboxylic acid anhydrides or corresponding polycarboxylic acid esters of lower alcohols can also be used to prepare the polyester.
- diols examples include ethylene glycol, butylene glycol, diethylene glycol, triethylene glycol, polyalkylene glycols such as polyethylene glycol, also 1,2-propanediol, 1,3-propanediol, butanediol(1,3), butanediol(1,4), hexanediol(1,6) and isomers, neopentyl glycol or hydroxypivalic acid neopentyl glycol ester, the latter three compounds being preferred.
- polyalkylene glycols such as polyethylene glycol, also 1,2-propanediol, 1,3-propanediol, butanediol(1,3), butanediol(1,4), hexanediol(1,6) and isomers, neopentyl glycol or hydroxypivalic acid neopentyl glycol ester, the latter three compounds being preferred.
- polyols with a functionality of 3 can be used proportionally, for example trimethylolpropane, glycerol, erythritol, pentaerythritol, trimethylolbenzene or trishydroxyethyl isocyanurate.
- Suitable dicarboxylic acids are, for example, phthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, cyclohexanedicarboxylic acid, adipic acid, azelaic acid, sebacic acid, glutaric acid, tetrachlorophthalic acid, maleic acid, fumaric acid, itaconic acid, malonic acid, suberic acid, 2-methylsuccinic acid, 3,3-diethylglutaric acid, 2 ,2-dimethylsuccinic acid.
- Anhydrides of these acids are also useful where they exist.
- anhydrides are therefore encompassed by the term "acid”.
- Monocarboxylic acids such as benzoic acid and hexanoic acid can also be used provided the average functionality of the polyol is >2.
- Saturated aliphatic or aromatic acids are preferred, such as adipic acid or isophthalic acid.
- Trimellitic acid may be mentioned here as a polycarboxylic acid which may be used in small amounts.
- hydroxycarboxylic acids which can be used as reactants in the preparation of a hydroxyl-terminated polyester polyol are hydroxycaproic acid, hydroxybutyric acid, hydroxydecanoic acid, hydroxystearic acid and the like.
- Useful factons include ⁇ -caprolactone, butyrolactone, and homologues.
- Polyester polyols based on butanediol and/or neopentyl glycol and/or hexanediol and/or ethylene glycol and/or diethylene glycol with adipic acid and/or phthalic acid and/or isophthalic acid are preferred. Polyester polyols based on butanediol and/or neopentyl glycol and/or hexanediol with adipic acid and/or phthalic acid are particularly preferred.
- the polycarbonate polyols in question can be obtained by reacting carbonic acid derivatives, for example diphenyl carbonate, dimethyl carbonate or phosgene, with diols.
- diols are ethylene glycol, 1,2- and 1,3-propanediol, 1,3- and 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol, neopentyl glycol, 1,4-bishydroxymethylcyclohexane, 2-methyl-l,3-propanediol, 2,2,4- trimethylpentanediol-1,3, dipropylene glycol, polypropylene glycols, dibutylene glycol, polybutylene glycols, bisphenol A, tetrabromobisphenol A, but also lactone-modified diols.
- the diol component preferably contains 40 to 100% by weight of 1,6-hexanediol and/or hexanediol derivatives, preferably those which have ether or ester groups in addition to terminal OH groups, for example products obtained by reacting 1 mole of hexanediol with at least 1 mole, preferably 1 to 2 moles, of e-caprolactone or by etherification of hexanediol with itself to give di- or trihexylene glycol.
- Polyether-polycarbonate polyols can also be used.
- Polycarbonate polyols based on dimethyl carbonate and hexanediol and/or butanediol and/or e-caprolactone are preferred. Very particular preference is given to polycarbonate polyols based on dimethyl carbonate and hexanediol and/or s-caprolactone.
- polyester or polycarbonate polyols described above it is also possible to use low molecular weight polyols in the molecular weight range from 62 to 400 g/mol for the production of the isocyanate-containing prepolymers.
- Suitable low molecular weight polyols are short-chain, ie containing 2 to 20 carbon atoms, aliphatic, araliphatic or cycloaliphatic diols or triols.
- diols examples are ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, 2-ethyl-2-butylpropanediol, trimethylpentanediol, 2,2, 4-Trimethyl-1,3-pentanediol, positional isomers diethyloctanediols, 1,3-butylene glycol, cyclohexanediol, 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,2- and 1,4-cyclohexanediol, hydrogenated bisphenol A (2, 2-bis(4-hydroxycyclohexyl)propane), 2,2-dimethyl-3-hydroxypropionic acid (2,2-di
- 1,4-Butanediol, 1,4-cyclohexanedimethanol and 1,6-hexanediol are preferred.
- suitable triols are trimethylolethane, trimethylolpropane or glycerol, with trimethylolpropane being preferred.
- the polyols mentioned can be used alone or as a mixture.
- the isocyanate-reactive compounds mentioned above can be reacted with all diisocyanates, aromatic and aliphatic hydroxyl compounds modified before the actual prepolymerization to give urethane.
- Aromatic, aliphatic and cycloaliphatic diisocyanates and mixtures thereof are suitable as isocyanate-containing components.
- Suitable diisocyanates are compounds of the formula PIC(NCO)2 with an average molecular weight below 400 g/mol, in which PIC is an aromatic C6-Ci5 hydrocarbon radical, an aliphatic C4-Ci2 hydrocarbon radical or a cyclo-aliphatic Ce-Cis hydrocarbon radical, for example diisocyanates from the series butane diisocyanate, 1,5-pentane diisocyanate (PDI), 1,6-hexane diisocyanate (hexamethylene diisocyanate, HDI), 4-isocyanatomethyl-1,8-octane diisocyanate (triisocyanatononane, TIN) 4,4'-methylene bis(cyclohexyl isocyanate), 3,5,5-trimethyl-l-isocyanato-3-isocyanatomethyl
- Xylylene diisocyanate (XDI), 4,4'-diisocyanatodicyclohexylmethane, tetramethylene diisocyanate, 2-methylpentamethylene diisocyanate, 2,2,4- trimethylhexamethylene diisocyanate (THDI), dodecamethylene diisocyanate, 1,4-diisocyanatocyclohexane, 4,4'-diisocyanato- 3,3'-dimethyl-dicyclohexylmethane, 4,4'-diisocyanatodicyclohexylpropane-(2,2), 3-isocyanatomethyl-l-methyl-l-isocyanatocyclohexane (MCI), l,3-diisooctylcyanato-4-methyl-cyclohexane, 1,3-diisocyanato-2-methyl-cyclohexane and l,3-bis(2-isocyan
- this also includes the use or joint use of the polymeric polyisocyanates mentioned below, also for example in the form of their derivatives such as urethanes, biurets, allophanates, uretdiones, isocyanurates and trimers and mixed forms of these derivatizations.
- mixtures of two or more isocyanates can also be used, but the use of only one isocyanate is preferred.
- Urethanization catalysts known per se to those skilled in the art, such as organotin compounds, bismuth compounds, zinc compounds, titanium compounds, zirconium compounds or aminic catalysts, can be used to accelerate the NCO-OH reaction.
- this catalyst component if used, is used in amounts of 0.001% by weight to 5.0% by weight, preferably 0.001% by weight to 0.1% by weight and particularly preferably 0.005% by weight to 0 .05% by weight based on the solids content of the process product.
- the urethanization reaction is carried out at temperatures from 20°C to 200°C, preferably from 40°C to 140°C and particularly preferably from 60°C to 120°C.
- the reaction is continued until (preferably complete) conversion of the isocyanate-reactive groups is achieved.
- the course of the reaction is usefully monitored by checking the NCO content and is complete when the corresponding theoretical NCO content reached and constant. This can be tracked by suitable measuring devices installed in the reaction vessel and/or by analyzing samples taken. Suitable methods are known to those skilled in the art. These are, for example, viscosity measurements, measurements of NCO content, refractive index, OH content, gas chromatography (GC), nuclear magnetic resonance spectroscopy (NMR), infrared spectroscopy (IR) and near-infrared spectroscopy (NIR).
- the NCO content of the mixture is preferably determined titrimetrically.
- the process is preferably carried out in a stirred reactor.
- a continuous distillation process is understood here as a process in which only a portion of the prepolymer from the process step described above is briefly exposed to an elevated temperature, while the amount not yet in the distillation process remains at a significantly lower temperature.
- the temperature required for the evaporation of the volatile constituents at an appropriately chosen pressure is to be understood as the elevated temperature.
- Distillation is preferably carried out at a temperature of less than 170° C., particularly preferably 110 to 170° C., particularly preferably 125 to 145° C., and at pressures of less than 20 mbar, particularly preferably less than 10 mbar, particularly preferably at 0.05 to 5 mbar.
- the temperature of the amount of the prepolymer-containing reaction mixture not yet in the distillation process is preferably from 0° to 60°C, particularly preferably from 15° to 40°C and very particularly preferably from 20° to 40°C.
- the temperature difference between the distillation temperature and the temperature of the amount of the prepolymer-containing reaction mixture not yet in the distillation process is preferably at least 5°C, particularly preferably at least 15°C, very particularly preferably 15° to 40°C.
- the distillation is preferably carried out at such a rate that a volume increment of the prepolymer-containing reaction mixture to be distilled is exposed to the distillation temperature for less than 10 minutes, particularly preferably less than 5 minutes, and then, if appropriate, brought back to the starting temperature of the prepolymer-containing reaction mixture before the distillation by active cooling becomes.
- the one that is passed through is preferred Temperature stress such that the temperature of the reaction mixture before the distillation or of the prepolymer after the distillation is at least 5° C., particularly preferably at least 15° C., very particularly preferably 15° to 40° C. higher than the distillation temperature used.
- Preferred continuous distillation techniques are short-path, falling-film and/or thin-film distillation (see, for example, Chemischetechnik, Wiley-VCH, Volume 1, 5th edition, pages 333-334).
- Thin-layer distillation with the parameters mentioned above is preferably used as the continuous distillation technique.
- silane-functionalized, polymeric polyisocyanate having at least one alkoxysilane group is preferred according to the invention in the context of the second embodiment.
- Said silane-functionalized, polymeric polyisocyanates can be synthesized by the direct reaction of polymeric polyisocyanates with alkoxysilanes which carry an isocyanate-reactive group such as amino, mercapto or hydroxy.
- Aromatic, araliphatic, aliphatic or cycloaliphatic polymeric polyisocyanates with an NCO functionality >2 are used as suitable polymeric polyisocyanates.
- Suitable diisocyanates for preparing the polymeric polyisocyanates are any diisocyanates obtainable by phosgenation or by phosgene-free processes, for example by thermal urethane cleavage, the isocyanate groups of which are bonded to an optionally further substituted aromatic compound via optionally branched aliphatic radicals, such as preferably 1,4-butane diisocyanate, 1 ,5-pentane diisocyanate (PDI), 1,6-hexane diisocyanate (hexamethylene diisocyanate, HDI), 4-isocyanatomethyl-1,8-octane diisocyanate (triisocyanatononane, TIN) 4,4'-methylene bis(cyclohexyl isocyanate), 3,5 ,5-Trimethyl-1-isocyanato-3-isocyanatomethylcyclohexane (isophorone diisocyanate, IPDI), 2,4- and/or 2,
- Dimers of the aforementioned diisocyanates, trimers of the aforementioned diisocyanates or combinations thereof are particularly suitable as the polymeric polyisocyanate according to the invention for the preparation of the said silane-functional polymeric polyisocyanates.
- the preparation of the polymeric polyisocyanate components from the aforementioned diisocyanates is carried out with the aid of known modification reactions by reacting part of the isocyanate groups originally present in the starting diisocyanate to form polymeric polyisocyanate molecules which consist of at least two diisocyanate molecules.
- Suitable such modification reactions are, for example, the usual methods for the catalytic tables oligomerization of isocyanates to form uretdione, isocyanurate, iminooxadiazinedione and / or oxadiazinetrione or for the biuretization of diisocyanates, as z. B. in Laas et al, J. Prakt. Chem. 336, 1994, 185-200, in DE-A 1 670 666 and EP-A 0 798 299 are described by way of example.
- Isocyanate-reactive alkoxysilane compounds for the production of silane-functionalized prepolymers according to the invention are well known to those skilled in the art. Examples which may be mentioned are aminopropyltrimethoxysilane, mercaptopropyltrimethoxysilane, mercaptopropyltriethoxysilane, aminopropylmethyldimethoxysilane, mercaptopropylmethyldimethoxysilane, aminopropyltriethoxysilane,
- Phenylaminopropyltriethoxysilane N,N-bis(3-trimethoxysilylpropyl)amine, N,N-bis(3-triethoxysilylpropyl)amine, N,N-bis(3-tri-i-propoxysilylpropyl)amine.
- aspartic acid esters as described in EP-A 0 596 360 can also be used as isocyanate-reactive alkoxysilane compounds. With these molecules general formula III
- Formula III X means the same or different alkoxy or alkyl radicals, which can also be bridged, but at least one alkoxy radical must be present on each Si atom, Q is a difunctional linear or branched aliphatic radical and Z is an alkoxy radical with 1 to 10 carbon atoms.
- the use of such aspartic acid esters is preferred. Examples of particularly preferred aspartic acid esters are A'-(3-triethoxysilylpropyl)aspartic acid diethyl ester, A'-(3-trimethoxysilylpropyl)aspartic acid diethyl ester and N-(3-dimethoxymethylsilylpropyl)aspartic acid diethyl ester.
- the prepolymers containing alkoxysilyl groups used according to the invention are produced using isocyanate-reactive alkoxysilane compounds by reacting isocyanate-functional prepolymers (preferably those of the first embodiment (isocyanate-functional polyurethane) or the second embodiment (polymeric polyisocyanates)) by reaction with an isocyanate-reactive alkoxysilane compound to form the silane-terminated prepolymer.
- Said reaction with isocyanate-reactive alkoxysilanes takes place within a temperature range of from 0° C. to 150° C., preferably from 20° C.
- the quantitative ratios generally being chosen such that 0.8 to 1 3 moles of the isocyanate-reactive alkoxysilane compound are used, preferably 1.0 mole of isocyanate-reactive alkoxysilane compound per mole of NCO groups used.
- the silane-functional prepolymer is a silane-functional prepolymer obtainable by reacting an isocyanatosilane with a polymer which has isocyanate-reactive functional end groups, in particular hydroxyl groups, mercapto groups and/or amino groups.
- Preferred polymers containing isocyanate-reactive functional end groups are the abovementioned polymeric polyols, very particularly polyether, polyester, polycarbonate and polyacrylate polyols, and also polyurethane polyols prepared from polyisocyanates and the polyols mentioned. Mixtures of all the polyols mentioned can also be used. In principle, all alkoxysilane-containing monoisocyanates with a molecular weight of 140 g/mol to 500 g/mol are suitable as isocyanate-functional alkoxysilane compounds.
- Examples of such compounds are isocyanatomethyltrimethoxysilane, isocyanatomethyltriethoxysilane, (isocyanatomethyl)methyldimethoxysilane, (isocyanatomethyl)methyldiethoxysilane, 3-isocyanatopropyltrimethoxysilane, 3-isocyanatopropylmethyldimethoxysilane, 3-isocyanatopropyltriethoxysilane and 3-isocyanatopropylmethyldiethoxysilane.
- 3-isocyanatopropyltrimethoxysilane or 3-isocyanatopropyltriethoxysilane is preferred here, and the use of 3-isocyanatopropyltriethoxysilane is very particularly preferred.
- isocyanate-functional silanes which have been prepared by reacting a diisocyanate with an aminosilane or thiosilane, as described in US Pat. No. 4,146,585 or EP-A 1,136,495.
- the reaction of the isocyanatosilanes with the polyols preferably used is carried out in the same way as described above for the preparation of the isocyanate-containing prepolymer from the polyisocyanate component with the polyol component.
- the ratio of the NCO groups of the isocyanatosilane to the isocyanate-reactive groups, preferably the hydroxyl groups of the polyols, is between 0.5:1 and 1:1, preferably between 0.75:1 and 1:1, very particularly preferably between 0 9:1 and 1:1.
- the silane-functional prepolymer is a silane-functional prepolymer obtainable by a hydrosilylation reaction of polymers having terminal double bonds, for example poly(meth)acrylate polymers and polyether polymers, in particular allyl-terminated polyoxyalkylene polymers, described for example in US 3,971,751 and US 6,207,766.
- alkoxysilane-containing prepolymers which are described in the published specifications cited in the introduction to this patent application can also be used according to the invention.
- Suitable commercially available silane-functional prepolymers falling within the foregoing description are, in particular, products under the trade names MS PolymerTM (from Kaneka Corp.; in particular types S203H, S303H, S227, S810, MA903 or S943); MS PolymerTM or SilylTM (from Kaneka Corp.; in particular the types SAT010, SAT030, SAT200, SAX350, SAX400, SAX725, MAX450, MAX602 or MAX951); Excestar ® (from Asahi Glass Co.
- MS PolymerTM from Kaneka Corp.; in particular types S203H, S303H, S227, S810, MA903 or S943
- MS PolymerTM or SilylTM from Kaneka Corp.; in particular the types SAT010, SAT030, SAT200, SAX350, SAX400, SAX725, MAX450, MAX602 or MAX951
- Excestar ® from Asa
- composition according to the invention preferably contains component A in an amount of 5 to 95% by weight, particularly preferably 10 to 80% by weight, very particularly preferably 10 to 50% by weight, based in each case on the total weight of the composition.
- composition according to the invention also comprises at least one amino-functional compound which acts as an aging inhibitor (component B), with compounds of the oxalanilide type or compounds having 2, 2, 6, 6 tetramethylpiperidinyl groups being excluded from component B.
- component B at least one amino-functional compound which acts as an aging inhibitor
- They are preferably amino-functional compounds which have at least one secondary amino group, in which at least one of the radicals is an optionally substituted with alkyl, aralkyl, secondary amino (-N(H)-alkyl) or tertiary amino group (-N(alkyl ')-alkyl 2 )-substituted aryl, preferably phenyl optionally substituted with alkyl, aralkyl, secondary amino (-N(H)-alkyl) or tertiary amino (-N(alkyl')-alkyl 2 ); with the exception of compounds of the above type of component B.
- R 4 is a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms
- R 5 and R 6 are identical or different radicals and hydrogen, a saturated or unsaturated , linear or branched, aliphatic or cycloaliphatic or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms
- R 5 is preferably hydrogen.
- radicals R 7 to R 10 are identical or different radicals and are hydrogen, a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms and are preferably identical or different radicals and are hydrogen or a saturated or unsaturated, linear or branched, aliphatic radical having up to 6 carbon atoms.
- radicals R 11 to R 14 are identical or different radicals and are hydrogen, a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms, or the radicals R 11 and R 12 and/or the radicals R 13 and R 14 are each bound to the aromatic compound(s) in the ortho position to one another and together form an aromatic, optionally substituted ring.
- radicals R 11 or R 13 is, particularly preferably both radicals R 11 or R 13 are hydrogen, and the remaining radicals are each independently a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or one optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms.
- the compounds of the general formulas IV to VI include, for example: 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ), N,N'-bis-(1,4-dimethylpentyl)-p-phenylenediamine, N- Isopropyl-N'-phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, N-phenyl-1-naphthylamine, N-phenyl-1-naphthylamine, bis( 4-octylphenyl)amine (also octylated diphenylamine) and styrenated diphenylamine.
- TMQ 2,2,4-trimethyl-1,2-dihydroquinoline
- TMQ 2,2,4-trimethyl-1,2-dihydroquinoline
- the at least one amino-functional compound is particularly preferably selected from compounds of the general formulas IV and V.
- the at least one amino functional compound is selected from 2,2,4- Trimethyl-1,2-dihydroquinoline (TMQ), /VJV-bis-(1,4-dimethylpentyl)-/-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, and N-(1,3-dimethylbutyl )-N'-phenyl-p-phenylenediamine.
- TMQ 2,2,4- Trimethyl-1,2-dihydroquinoline
- VJV-bis-(1,4-dimethylpentyl)-/-phenylenediamine N-isopropyl-N'-phenyl-p-phenylenediamine
- N-(1,3-dimethylbutyl )-N'-phenyl-p-phenylenediamine 2,2,4- Trimethyl-1,2-dihydroquinoline (TMQ), /VJV-bis-(1,4-dimethylp
- the at least one amino functional compound is selected from 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ), and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine.
- composition according to the invention preferably contains component B in an amount of 0.01 to 2% by weight, particularly preferably 0.1 to 1% by weight, even more preferably 0.1 to 0.5% by weight, in each case based on the total weight of the composition.
- Component B can be added to the formulation as a single component. Anti-ageing agents, light stabilizers and UV stabilizers are usually added as a package to most formulations based on STP. In addition, component B can also be added to the STP during its manufacture as a stabilizer.
- the composition according to the invention additionally comprises at least one curing catalyst (component C). This serves as a catalyst for crosslinking the silane-functional prepolymers and other compounds containing silane groups.
- Suitable curing catalysts are titanates, such as tetrabutyl titanate or titanium tetraacetylacetonate; bismuth compounds such as bismuth tris-2-ethylhexanoate; tin carboxylates such as dibutyltin dilaurate (DBTL), dibutyltin diacetate or dibutyltin diethylhexanoate; tin oxides such as dibutyltin oxide and dioctyltin oxide; organoaluminum compounds such as aluminum tris-acetylacetonate; chelate compounds such as zirconium tetra-acetylacetonate; amine compounds or their salts with carboxylic acids such as octylamine, cyclohexylamine, benzylamine, dibutylamine, monoethanolamine, triethanolamine, diethylenetriamine, triethylenetetramine, triethylenediamine, 1,8-diazabicy
- DBU 1,8-diazabicyclo[5.4.0]undec-7-ene
- DBN 1,5-diazabicyclo[4.3.0]non-5-ene
- the composition according to the invention preferably comprises 0.01 to 5% by weight, preferably 0.05 to 2.5% by weight, particularly preferably 0.1 to 1% by weight, based on curing catalyst to the total weight of the composition.
- the process is carried out without a catalyst.
- catalysts is preferred.
- composition according to the invention optionally comprises additives and/or auxiliaries (component D).
- auxiliaries include: i) Fillers: Suitable fillers are inorganic and organic fillers, for example natural, ground or precipitated calcium carbonates, which may be coated with fatty acids, in particular stearic acid, barium sulphate (BaSCF, also called barite or heavy spar), calcined kaolins, aluminum oxides , aluminum hydroxides, magnesium hydroxide, silicic acids, in particular highly disperse silicic acids from pyrolysis processes, soot, in particular industrially produced soot (carbon black), PVC powder or hollow spheres.
- Preferred fillers are calcium carbonates, calcined kaolins, carbon black, highly disperse silicic acids and flame-retardant fillers (cf. also v)).
- the composition according to the invention preferably comprises 2 to 80% by weight, preferably 40 to 70% by weight, particularly preferably 50 to 60% by weight, of filler, based on the total weight of the composition.
- Plasticizers are, for example, esters of organic carboxylic acids or their anhydrides, such as phthalate, for example dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate, adipates, for example dioctyl adipate, azelate and sebacate, dialkyl cyclohexanedicarboxylate in which the alkyl radicals of the ester groups each independently have 1 to 20 C Contain atoms, polyols, for example polyoxyalkylene polyols or polyester polyols, organic phosphoric and sulfonic acid esters or polybutenes. If no other component contains polymers with polyether groups, at least one polymer with polyether groups is preferably used
- the composition according to the invention preferably comprises 0 to 30% by weight, preferably 5 to 20% by weight, particularly preferably 7.5 to 15% by weight, of plasticizers, based on the total weight of the composition.
- Drying agents are, for example, vinyltrimethoxysilane, cc-functional silanes such as N-(silylmethyl)-0-methyl carbamate, in particular N-(methyldimethoxysilylmethyl)-0-methyl carbamate, (methacryloxymethyl)silane, methoxymethylsilane, N - Phenyl, N-cyclohexyl and N-alkylsilanes, orthoformic esters, calcium oxide or molecular sieves.
- 3-glycidoxypropyltrimethoxysilane 3-aminopropyltrimethoxysilane
- N-(2-aminoethyl)-3-aminopropyltrimethoxysilane N-(2-aminoethyl)-N'-[3-
- Other stabilizers such as UV stabilizers, UV absorbers, HALS amines or phenolic antioxidants.
- Non-reactive polymers such as in particular homo- or copolymers of unsaturated monomers, in particular from the group comprising ethylene, propylene, butylene, isobutylene, isoprene, vinyl acetate or alkyl (meth)acrylates, in particular polyethylene (PE), polypropylene (PP), polyisobutylenes,
- EVA ethylene vinyl acetate copolymers
- APAO atactic poly-a-olefins
- Flame retardant substances in particular the aluminum hydroxide or magnesium hydroxide fillers already mentioned, or in particular organic phosphoric acid esters such as in particular triethyl phosphate, tricresyl phosphate, triphenyl phosphate, diphenylcresyl phosphate, isodecyldiphenyl phosphate, tris(1,3-dichloro-2-propyl) phosphate, tris( 2-chloroethyl) phosphate, tris(2-ethylhexyl) phosphate, tris(chloroisopropyl) phosphate,
- organic phosphoric acid esters such as in particular triethyl phosphate, tricresyl phosphate, triphenyl phosphate, diphenylcresyl phosphate, isodecyldiphenyl phosphate, tris(1,3-dichloro-2-propyl) phosphate, tris( 2-chloroethyl
- Biocides in particular algaecides, fungicides or substances inhibiting the growth of fungi.
- composition according to the invention preferably contains at least one further component selected from fillers, crosslinking agents, plasticizers, solvents, catalysts, adhesion promoters, drying agents, stabilizers, pigments and rheological aids, as described above.
- single-component refers to a composition in which all components of the composition are stored mixed in the same container and which can be cured with moisture.
- curable means in particular that the composition can change from a relatively soft, possibly plastically deformable state to a harder state under the influence of external conditions, in particular under the influence of moisture present in the environment and / or deliberately added the crosslinking can take place through chemical and/or physical influences, in addition to the moisture already mentioned, for example also through the supply of energy in the form of heat, light or other electromagnetic radiation, but also through simply bringing the composition into contact with air or a reactive component.
- the moisture-curing composition preferably has a pasty consistency with pseudoplastic properties.
- a pasty adhesive or sealant is applied to a substrate in particular from commercially available cartridges, which are operated manually or using compressed air, or from a barrel or hobbock using a feed pump or an extruder, optionally using an application robot.
- Metals or alloys such as aluminum, iron, steel or non-ferrous metals, or surface-treated metals or alloys such as galvanized or chrome-plated metals;
- a bonded or sealed article is obtained.
- Such an article can be a building, in particular a structural or civil engineering structure, or an industrial good or a consumer good, in particular a window, a household appliance or a means of transport such as in particular an automobile, a bus, a truck, a rail vehicle, a ship , an airplane or a helicopter, be an add-on part thereof.
- the adhesives, sealants and coatings obtainable using the compositions according to the invention can withstand much higher temperatures than the known STP-based systems of the prior art and can therefore be used in areas in which they have to withstand elevated temperatures for a long time, ie temperatures above 100 exposed to °C.
- Adhesive formulations were produced without aging inhibitors, with aging inhibitors according to the prior art and with the aging inhibitors according to the invention.
- the viscosity and reactivity of the freshly prepared mixture were determined 7 days after filling into cartridges (storage at 23° C.).
- the cartridges were stored at 50°C for 12 weeks and the change in viscosity and reactivity was determined.
- a membrane is also produced 7 days after filling and cured for 2 weeks under standard conditions (23° C./50% relative humidity).
- the physical properties were first measured on unaged test specimens.
- the temperature stability of the STP formulations was determined by measuring the oxidation induction time (OIT) using differential scanning calorimetry in accordance with DIN EN ISO 11357-6:2013. A high OIT indicates high temperature resistance.
- a moisture-curing adhesive composition based on a silane-modified polymer was prepared according to the following instructions: 2817 g of Omyalite® 95 T filler (calcium carbonate, Omya AG) previously dried for 16 hours at 100° C. in a convection oven are mixed with 519.5 g plasticizer (Mesamoll® , Fanxess AG), 1501 g Desmoseal® S XP 2458 (aliphatic silane-terminated polyurethane polymer, Covestro GmbH AG), 41.5 g Cab-O-Sil® TS 720 (hydrophobic pyrogenic silica, Cabot Corporation), 0- 23 g anti-aging agent (and other UV/stain protection additives if necessary) and 6 g 1,8-diazabicyclo[5.4.0]undec-7-ene (catalyst, Sigma-Aldrich Corporation), as well as 115 g drying agent (Dynasylan® VTMO, vinyltrimethoxysi
- the adhesive composition was then mixed in a Fabor dissolver with a dissolver disk (1000 revolutions/min with an aminosilane for 5 minutes under a static vacuum and then for 5 minutes under a dynamic vacuum (20 mbar).
- the preparation of the mixture was carried out with cooling, so that a temperature of 65° C. was not exceeded during preparation.
- the storage stability of the moisture-curing adhesive compositions was checked in cartridges (viscosity) tempered at 50.degree.
- the viscosity was measured on the Physica MCR 501 device from Anton Paar.
- the cone/plate CP 25/1 with Peltier heating CPTD-200 was used.
- the mixture is prepared as described above.
- a 2mm thick membrane was produced.
- the formulation was applied to form membranes with a doctor blade with a uniform layer thickness of 2 mm on a polyethylene film and cured for 14 days at 23° C. and 50% humidity, the membranes being detached from the film and turned over after 7 days .
- the physical properties and, based thereon, the aging resistance of the membranes obtained were determined by the following methods.
- the OIT is the point in time at which an exothermic oxidation reaction begins.
Abstract
Description
Claims
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CN202280020695.2A CN117321140A (zh) | 2021-03-11 | 2022-03-08 | 耐老化湿固化型组合物 |
EP22711039.2A EP4305107A1 (de) | 2021-03-11 | 2022-03-08 | Alterungsbeständige feuchtigkeitshärtende zusammensetzungen |
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EP21162179.2 | 2021-03-11 | ||
EP21162179.2A EP4056652A1 (de) | 2021-03-11 | 2021-03-11 | Alterungsbeständige feuchtigkeitshärtende zusammensetzungen |
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WO2022189382A1 true WO2022189382A1 (de) | 2022-09-15 |
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EP (2) | EP4056652A1 (de) |
CN (1) | CN117321140A (de) |
WO (1) | WO2022189382A1 (de) |
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- 2021-03-11 EP EP21162179.2A patent/EP4056652A1/de not_active Withdrawn
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2022
- 2022-03-08 EP EP22711039.2A patent/EP4305107A1/de active Pending
- 2022-03-08 WO PCT/EP2022/055798 patent/WO2022189382A1/de active Application Filing
- 2022-03-08 CN CN202280020695.2A patent/CN117321140A/zh active Pending
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Also Published As
Publication number | Publication date |
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CN117321140A (zh) | 2023-12-29 |
EP4056652A1 (de) | 2022-09-14 |
EP4305107A1 (de) | 2024-01-17 |
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